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[media] adv7604: Add DT support
Parse the device tree node to populate platform data. Only the ADV7611 is currently support with DT. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
Laurent Pinchart
Mauro Carvalho Chehab
parent
5ef54b5955
commit
f82f313e97
57
Documentation/devicetree/bindings/media/i2c/adv7604.txt
Normal file
57
Documentation/devicetree/bindings/media/i2c/adv7604.txt
Normal file
@ -0,0 +1,57 @@
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* Analog Devices ADV7604/11 video decoder with HDMI receiver
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The ADV7604 and ADV7611 are multiformat video decoders with an integrated HDMI
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receiver. The ADV7604 has four multiplexed HDMI inputs and one analog input,
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and the ADV7611 has one HDMI input and no analog input.
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These device tree bindings support the ADV7611 only at the moment.
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Required Properties:
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- compatible: Must contain one of the following
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- "adi,adv7611" for the ADV7611
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- reg: I2C slave address
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- hpd-gpios: References to the GPIOs that control the HDMI hot-plug
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detection pins, one per HDMI input. The active flag indicates the GPIO
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level that enables hot-plug detection.
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The device node must contain one 'port' child node per device input and output
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port, in accordance with the video interface bindings defined in
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Documentation/devicetree/bindings/media/video-interfaces.txt. The port nodes
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are numbered as follows.
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Port ADV7611
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------------------------------------------------------------
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HDMI 0
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Digital output 1
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The digital output port node must contain at least one endpoint.
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Optional Properties:
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- reset-gpios: Reference to the GPIO connected to the device's reset pin.
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Example:
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hdmi_receiver@4c {
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compatible = "adi,adv7611";
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reg = <0x4c>;
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reset-gpios = <&ioexp 0 GPIO_ACTIVE_LOW>;
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hpd-gpios = <&ioexp 2 GPIO_ACTIVE_HIGH>;
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#address-cells = <1>;
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#size-cells = <0>;
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port@0 {
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reg = <0>;
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};
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port@1 {
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reg = <1>;
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hdmi_in: endpoint {
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remote-endpoint = <&ccdc_in>;
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};
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};
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};
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@ -2663,13 +2663,58 @@ static const struct adv7604_chip_info adv7604_chip_info[] = {
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},
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};
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static struct i2c_device_id adv7604_i2c_id[] = {
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{ "adv7604", (kernel_ulong_t)&adv7604_chip_info[ADV7604] },
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{ "adv7611", (kernel_ulong_t)&adv7604_chip_info[ADV7611] },
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{ }
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};
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MODULE_DEVICE_TABLE(i2c, adv7604_i2c_id);
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static struct of_device_id adv7604_of_id[] __maybe_unused = {
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{ .compatible = "adi,adv7611", .data = &adv7604_chip_info[ADV7611] },
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{ }
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};
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MODULE_DEVICE_TABLE(of, adv7604_of_id);
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static int adv7604_parse_dt(struct adv7604_state *state)
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{
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/* Disable the interrupt for now as no DT-based board uses it. */
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state->pdata.int1_config = ADV7604_INT1_CONFIG_DISABLED;
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/* Use the default I2C addresses. */
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state->pdata.i2c_addresses[ADV7604_PAGE_AVLINK] = 0x42;
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state->pdata.i2c_addresses[ADV7604_PAGE_CEC] = 0x40;
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state->pdata.i2c_addresses[ADV7604_PAGE_INFOFRAME] = 0x3e;
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state->pdata.i2c_addresses[ADV7604_PAGE_ESDP] = 0x38;
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state->pdata.i2c_addresses[ADV7604_PAGE_DPP] = 0x3c;
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state->pdata.i2c_addresses[ADV7604_PAGE_AFE] = 0x26;
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state->pdata.i2c_addresses[ADV7604_PAGE_REP] = 0x32;
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state->pdata.i2c_addresses[ADV7604_PAGE_EDID] = 0x36;
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state->pdata.i2c_addresses[ADV7604_PAGE_HDMI] = 0x34;
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state->pdata.i2c_addresses[ADV7604_PAGE_TEST] = 0x30;
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state->pdata.i2c_addresses[ADV7604_PAGE_CP] = 0x22;
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state->pdata.i2c_addresses[ADV7604_PAGE_VDP] = 0x24;
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/* Hardcode the remaining platform data fields. */
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state->pdata.disable_pwrdnb = 0;
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state->pdata.disable_cable_det_rst = 0;
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state->pdata.default_input = -1;
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state->pdata.blank_data = 1;
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state->pdata.op_656_range = 1;
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state->pdata.alt_data_sat = 1;
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state->pdata.insert_av_codes = 1;
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state->pdata.op_format_mode_sel = ADV7604_OP_FORMAT_MODE0;
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state->pdata.bus_order = ADV7604_BUS_ORDER_RGB;
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return 0;
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}
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static int adv7604_probe(struct i2c_client *client,
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const struct i2c_device_id *id)
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{
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static const struct v4l2_dv_timings cea640x480 =
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V4L2_DV_BT_CEA_640X480P59_94;
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struct adv7604_state *state;
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struct adv7604_platform_data *pdata = client->dev.platform_data;
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struct v4l2_ctrl_handler *hdl;
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struct v4l2_subdev *sd;
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unsigned int i;
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@ -2688,19 +2733,32 @@ static int adv7604_probe(struct i2c_client *client,
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return -ENOMEM;
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}
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state->info = &adv7604_chip_info[id->driver_data];
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state->i2c_clients[ADV7604_PAGE_IO] = client;
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/* initialize variables */
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state->restart_stdi_once = true;
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state->selected_input = ~0;
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/* platform data */
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if (!pdata) {
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if (IS_ENABLED(CONFIG_OF) && client->dev.of_node) {
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const struct of_device_id *oid;
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oid = of_match_node(adv7604_of_id, client->dev.of_node);
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state->info = oid->data;
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err = adv7604_parse_dt(state);
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if (err < 0) {
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v4l_err(client, "DT parsing error\n");
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return err;
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}
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} else if (client->dev.platform_data) {
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struct adv7604_platform_data *pdata = client->dev.platform_data;
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state->info = (const struct adv7604_chip_info *)id->driver_data;
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state->pdata = *pdata;
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} else {
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v4l_err(client, "No platform data!\n");
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return -ENODEV;
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}
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state->pdata = *pdata;
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/* Request GPIOs. */
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for (i = 0; i < state->info->num_dv_ports; ++i) {
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@ -2799,7 +2857,7 @@ static int adv7604_probe(struct i2c_client *client,
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continue;
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state->i2c_clients[i] =
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adv7604_dummy_client(sd, pdata->i2c_addresses[i],
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adv7604_dummy_client(sd, state->pdata.i2c_addresses[i],
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0xf2 + i);
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if (state->i2c_clients[i] == NULL) {
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err = -ENOMEM;
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@ -2873,21 +2931,15 @@ static int adv7604_remove(struct i2c_client *client)
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/* ----------------------------------------------------------------------- */
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static struct i2c_device_id adv7604_id[] = {
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{ "adv7604", ADV7604 },
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{ "adv7611", ADV7611 },
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{ }
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};
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MODULE_DEVICE_TABLE(i2c, adv7604_id);
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static struct i2c_driver adv7604_driver = {
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.driver = {
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.owner = THIS_MODULE,
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.name = "adv7604",
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.of_match_table = of_match_ptr(adv7604_of_id),
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},
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.probe = adv7604_probe,
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.remove = adv7604_remove,
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.id_table = adv7604_id,
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.id_table = adv7604_i2c_id,
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};
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module_i2c_driver(adv7604_driver);
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